Protowenella (Mollusca) from the Cambrian of Peary Land, eastern North Greenland

ProtowenelIa is aminute planispiral mollusc with characteristic circumbilical channels on the internal mouid, first described from two Middle Cambrian localities in Australia by Runnegar & Jell (1976). BergMadsen & Peel (1978) subsequently described Protowenella from the Middle Cambrian of Denmark and, on the basis of a functional morphological interpretation, supported the suggestion of Runnegar & Jell that the genus was a member of the class Monoplacophora.